Department of Ophthalmology

a pale arm with spots from poison oak
Engineer Steven Little and colleagues may have found the cell-sized source of irritation caused by contact with allergens.
man using BrainPort, a device that allows people with vision impairments to "see" using their tongue
"Sight: The Story of Vision" shows a Pitt-researched device called BrainPort — a set of glasses and a lollipop-like combo that allows people with vision impairments the ability to "see" through touch.